Hub for demountable wheels



T. FISHER.

HUB FOR DEMOUNTABLE WHEELS.

APPLICATION FILED MAY 20, 1920.

1,369,643.- Patented Feb. 22,1921.

4' I I 3mm f? mqey FISHER 86% attomg uni-T srr TRACY FISHER; Of HIGHLAND PARK; MICHIGAN. I 7

f Ji UB non DEMOUNTABLE- WHEELS.

Application filed my 20,1920. Serial No. 382,745.

To allwhomz'tmag concern,"

Be it known that 1 -TRACY-I FISHER, a citizen of the United. States, residing at Highland Park, county :of Wayne, State ofMichigan, have invented a: certain new and useful Improvement in Hubs for Demo'un'table Wheels, and declare theffollowingto be a full, clear, and exact description of the same, such as will enable others skilled'in the art to which it pertains to make and use th-e"same, reference being had to the accompanying drawings, which form a art of this specification.

his invention relatesto hub; construe tion for demountable'wheels and'its ob'ject is to provide a simpleand efiicient means for detachably securing the wheel in place on an inner hub member mounted on the axle of the vehicle and'loc'k the same from movement thereto. A novel featureof. the invention isinvolved in the means for looking the inner and outer 'hub members :to-

gether whereby-they are firmly held from accidental displacement and may be quickly and readily dismounted A' further feature of. the invention is involved in the jconstruc-h tion of the cap member having threaded. relation with the inner hub member and adapted-by rotation in one direction to force the outer hub member into position on the inner hub member'ythe outer hub member in keyed relation. the ewith, thefcap being adapted. by rotation. in the other direction to withdraw the outer' hub member from the inner huband means for locking the two members together. These objects andthe several novel features? of the invention are hereinafter: more fully described. and claimedand the preferred'fo'rmof construction by which theseobjects areattained. is). shown. in. the accompany ng drawings, 1n.

which-'- Figure I is a side elevation. of' a wheelelevation of the wrench As shown in Fig. 2 a wheel hub or inner} hub member 1 of the usual type is. providechthe saidhub member being threaded at the end at 2 and being also provided [Specification of Letters Patent. Patented drecessed end '0 wrench." This hub cap et isthreaded' at }6, the said threa dfi beingimuch less inpitch j than'the threads12an'd an annular'memb'er Fig. '2. isa section taken on. line Witha key '3 shown. Threaded on the end of the inner hub member at 2 is a hub I cap 4: which is provided with hexagonal adapted to receive a socket 7 is provided fitting the thread 6. Y Fitting over 'the'memberjd, is 'aretainer 8 which is provided withan inwardly extending v flange 9, the inner periphery of. the said flange being supported on the outer cylin- 1 dric'al face ofthe' member 4." v In the space 10 between the members 4 and; 8 I provide; aspring 11, andpositionedon this spring 11 and in the recesslO. is ariannular. mems berj 12 in which is carriedafpair' ofballs 13,'the said members 4 andS'being each providedyvith an .annular groove 14 on the ad jacent faces thereof, providing a runwa' for the'balls as indicated moreparti'cular y in 1 Figs. 3 and 4. Equidistantly spacedabout the outer and innerperipheries of the hub cap and retainer respectively are number of longitudinally extending ball grooves,

opening into the channel'l l in which, when the ballgrooves are positioned in ali'nement', the'bal1'sl3 may be positioned; "thev spring 11, tending 'tofforce" the balls 13to such position.mAsjwillbe noted fri'am Fig.

2the ring l2extends to and is finished flush l' withythe outer surfaces jofthe caplet andjretainerQfS and "is provided with 'an'annulan shoulder 17 adaptedv to engage the inner face of the annular flange 1810f the hub cap 4. Aswill be readily seen from Fig. 2,

the spring member 11 forces the'member 12. and balls l3therein to the position shown fiushiwith. theiouter surfaces of the hub cap/and retainer respectively. Theretainer 8"is-jprovid'ed withlefthan'd threads at'19 and in threaded relation thereWith-isthe outer .huh member. 20 to -which' the spokes: of the wheel =are adaptedfto be secured.

To hold the member 20 from rotation in relation'v tothe retainer 81' provide" a screwf 21 threaded into the said-member 20 and provided with an. end-22; fittinghin j an ap- 1' erture provided? in the. retainer 8 thereb securing thetwof'partstogether. I 7 1 In operation. awrench 23 is provided as shown in Fig. 5ihaving a number of pins 24- adapted to. engage the outer face ofthe-annular member 12. and the wrench is provided 7 with. an-outwardly extending hexagonalcena, tralmember 25 adapted to fit the hexagonal the annular member 12 inwardly against the tension of the spring 11. As the member 12 is moved inwardly the pair of bal1s13 are carried inwardlythereby, the balls normally fitting the ball race 14.- in the said members 4 and 8 when the wrench 23 hasbee'n correctly positioned. Vith the balls in the ball race lathe hub cape isfree to rotate, rotation. of the cap at by the said wrench in one direction threading the cap 4, farther ontothe threads 2 'of'the hub l the face 26 of the V member 4 engaging the face 27 of the member and forcing the same farther onto the I hub 1, rotation of the member 20 being prevented by the key 3 fitting akeyway therein. It is to be understood that two balls 13 are preferably provided in diametrical alinement and a considerable number of ball grooves 15 are provided so that at any point at which rotation of the hub cap 4 may be stopped a pair of ball grooves will be in aline'ment with the balls 13 to allow the balls 13 tolbe pressed therein by action of the spring 11 when the wrench iswithdrawn from the hub. It can thus be seen that the locking of the hub members one to the'other in this device is entirely automatic upon withdrawal of the wrench and, uponapplication of the Wrench "to the hub, the device is automatically unlocked and held in the unlocked position until the wrench is again disengaged{ As will be noted from Figs. 2 and 3 the hub cap 4 is provided with a pair of ball grooves 28 extending throughout the length of the member f to allow the said member to be positioned within the member 8 or be withdrawn therefrom without disturbing the balls 13 and, by adjustment of the annular members 7 on the threads of the hub cap ,L the member 8 be adjusted longitudinally,

From the foregoing description it becomes evident that thehub isvery efficient inv op eration and provides, an automatic means for locking the outer and inner hub member of a wheel together, the same look locking the entire wheel to the inner hub member and providin I i I accomplishes the objects desired. H

Having thus briefly described my inven tien, what I claim and'desire to secure by Letters Patent of the United States is I. The combinationof an inner hub m'emher, an .outer hub member, the inner hub member having terminal screw threads, a cap therefor revolubly mounted within the outer hub member and having threads for engaging the threaded end of the inner hub member, a retainer secured to the outerhub a construction that'eflectively 1 member, an annular channel in each adja scent face of the cap and retainer, a serles of ball grooves opening into the said channels in the adjacent faces of the cap andretainer, and a pair of balls normally seating in the said ball grooves.

2. The combination of an-inner'hub mem-. her, an outerhub member, the inner hub member having terminal screw threads, the V outer hub member being formed with a cylindrical portion greater in diameter than the diameter of the inner hub and extending I beyond the outer end thereof, a screw threaded cap memberrevolublymounted in said cylindrical portion, a retainer secured to the outer hub member, a series of-ball'grooves in the adjacent faces of the cap and retainer, and a pair of balls normally seating therein.

3. The combination of an inner hub member, an outer hub member, the inner hub member having terminal" screw threads, a cap therefor revolubly mounted within the outer hub member and having threads for engaging the threaded end of the inner hubmember, a retainer secured to-the outer hub member, an annular ball groove in each ad j acent face of the cap and retainer, ajserie of ball grooves extending longitudinally of the cap and retainerfa'nd opening into the annular ball grooves,a pair of ballsnormallyseating in the said longitudinally. ex-

tending channels and means for moving the balls into the. annular channels. I j

4 The combination-of an inner hub member, anrouter' hub member,"the inner hub member having terminzilscrewthreads, a cap therefor revolubly mountedwi'thin the outer hub member and having threads for engag ing the threaded end of the inner hub mem-' ber, a'retainer secured to the outer hub mem ber, an annular ball groove in each ad acen't face of the cap and retainer, a series of ball grooves extending, longitudinally of the cap and retainer and opening into the annular ball grooves, an annular member between the cap and retainer, a spring engaging the annular member, a pair'of balls carried by the annular member and yieldably: posi tioned in the longitudinal groovesby the spring and annular member, the annular member being. adapted to 'be depressed to position the balls in the annular grooves.

v The combination of an inner hub mem her, an outer hub member, the inner hub member having terminal screw threads, a cap thereforrevolubly mounted within the 1 outer hub member and havingithreads for engagingthe threaded end of the inner hub member, a retainer secured tothe outer hub member, an annular member threaded onto the end of the inner hub member and adapt= ed to engage the inner end of the retainer,

the retainer and cap being spaced apart throughout a portion of their length, an an nular groove in each adjacent face thereof,

a series of longitudinally extending grooves 7 opening therefrom, a pair of spring-pressed balls normally engaging the longitudinally ,extending grooves, andrmeans for moving the balls into the 'annular grooves against the tension of the spring.

6. The combination of an inner hub member, an outer'huh member, the inner hub member having terminal screw threads, a

cap therefor revolubly mounted Within the outer hub member and having threadsfor engaging the threaded encl of the inner hub the cap and retainer and opening into the an- I nular ball grooves, an annular member between the cap and retainer, aspringengag-v ing the annular member, a pair ofballs carried by the, annular memberand yieldably positioned in the longitudinal grooves by the spring I and annular member, the annular member extending flush with; the outer faces of the retainer and cap, an annular shoulder on the said annular member engaging a com panion shoulder on the cap and a Wrench fitting the capand, provided with anumber of pins adapted to depress the annular memher and position. the balls in; the annular j grooves When positioned in-fthe cap.

In testimony whereofl-I sign this specification. 7

TRAoY FIsHER. 

